Computing-machine.



W. S. JOHNS.

COMPUTING MACHINE.

v APPLIOATION FILED SEPT. 21, 1910.

Patented July 9,1912.

' WILLIAM S. JOHNS, F NORWOOD, OHIO.

. ,To all whom it may concern:

Specification of Letters Patent.

COMPUTING-MACHINE.-

Patente'd July 9, 1912.

Application filed September 21, 1910. Serial No. 583,006.

,Be it known that" I, WVILLIAM S. J onns, a

citizen of the United States, and a resident of the city' of Norwood, in the county of .l-lainiltonand State of Ohio, have invented certain. new and useful Improvements in week at any desire I The essential features of my invention in- Computing-Machines, of which the following a full, clear, and exact description, reference being had to the accompanying drawing, forming a part of this specification.

The object of my invention is to furnish a machine for-the computation of wages, interest and the like, and especially for determining at a glance the amount of wages due for anyfract-ional period of an hour, day or rate of wages.

volve the use of a series of tables containing tabulated computations of amounts of wages at varying rates for fixed intervals of time,-

and I arrange in connection with these tables a time scale divided into intervals to conform to. the fixed intervalsfor which the amounts of wages are calculated, and in connection with these two tables I employ a slidable or shifting member carrying pointers"fix'ed thereto and adapted to be shifted over the tables to indicate the amorints on the wages table to correspond with the intervals of time on the time scale, and I further provide anadjustable member also carryingpointers for the .two scales with the adjustable memberarranged to actuate the sliding member by being clamped thereto,

but adapted to be adjusted along the sliding member without actuation thereof.

The construction consists of that certain novel arrangement of parts to be hereinafter particularly pointed out and claimed, whereby the best results are attained in the simplest and most efficacious manner.

In the drawings, Figure l is a top plan VleW of my machine with POl'tlOllS of the top broken away. F 1g. 2 1s a sectional .end elevation taken on the lines'2, 2, of Fig. 1.

" Fig.3 is a perspective view of a portion of the pointer actuating device. Fig. 4' is a cross section of the parts shown in Fig. 3. Fig. 5 is a detail of one of the pulleys-for the endless tape.

The operating mechanism is inclosed in a.

rectangular box, comprising a bottom 1', ends 2, 2, sides 3, '3, and top 4, while to in'- 'close and cover the entire apparatus I provide a lid 5. A or slots 6,6, are formed lengthwise in the top, leaving a tablet 7, and

over this tablet is carried asheet of flexible material 8, which is "run from one rbllcit, 9 to another roller 10, the spindles 11, 12 of these rollers being suitably journaled in the ends of the casing. These spindles are provided with the pinions 13, 14, which are engaged by the gear 15 mounted on a stud 16,

which stud projects through the end 2 of the case and is provided with a knurled head 7 17 for rotating the gear 15, and thus winding the flexible sheet 8 from one roller to the other and carrying the sheet over the tablet 7. Upon this sheet 8 is printed a set of tables giving the computations of wages at varying rates and for fixed intervals of time. In the present instance, computations are made for the amounts of wages at varying rates for each five minute interval, say from 7 a. in. to 6 p. m., and the rates of wages, one rate for each table running from--sayfour cents an hour to seventyfive cents per hour. The length of the tabu lar sheet Swill of course depend on the ex tent of the tables; but for ordinary purposes, a few turns on each roller will be all that is required, and therefore I have not arranged for any slip between the rollers 9 and 10, as the variation in diameter of the two rolls will be very slight under ordinary conditions.

" For convenience in computation in addition to indicating on the sheet 8 the wages computations for the five minute intervals, I also indicate the computations at the given rate for the hours from 13 to 60, in order that the weekly payroll may be readily and easily made up, and in illustrating the table on the sheet 8, the amounts indi- -..to correspond to the live minute divisions on thetime scale, so that, for example, if the time scale beglns at seven oclock, at any amount of wages :torv that particular time at-the selected rate will appear on the wages table opposite the time selected.

selected hour or live minute interval, the

Joui'naled in suitable supports at each end in front of the time scale within the casiiig are a pair of "pulleys 19, over which runs an endless flexible tape or hand 20, in

5 the pro: =nt instance a tloxihle steel tape being employed. iie ed to this ntQel tape are a pair oil? pointers 2'1, 22. The pointer 'euded upwardly and re rwardly 9] is 0: along the taco oi the table top through :1, slo 2?; in the top, with the ute end of the pointer El extending to the list of Wages vomputaiions on the u'a 's scale 8, while the pointer extends upvmrdly through a slot 35 in the to l and over the t' he scale 1 26 hloel: mounted to mute on the rm 9", 538 uhieh cross the using above and at either ide o? the endess tape 20, and this block is A ovideil with 1 slot 29 near its base throu which the tape "C passe I and the block it tlai'nped to or released from the tape 20 by turnii 3; the set screw 2'50, lhe hloel: 2t} also carries pointers 23L which correspond to the pointers 2'1, I and which or mid upward through'lhe slots 33, Q5, and along the top of the casing to the Wages table and the time rule in the same Way {is the pointers '21 4 and 22. The central portion 33 of the block 26 extends through a slot 34 in the top of the case and the set screw 30 extends up wardly allow, the top so that it can be readily. grasped by the operator. Of course the method of securing the pointers to the tape 20 and the block 26 is not 1na-.

terial hut in the present instance I loop tho-inner end of the pointer 21 around the guide rods 27, 291 so that the guide rods also guide and sustain the belt or band 20 't'roiu sagging. Adjustahly secured to the block 20 is a third pointer 35, which l'rietionally held in the block or may he secured by set sei w.

order to determine the amount of \i'ages oil an' opei'al ire, l proceed as follows: Let us assume that it is desired to determine the amount of wag s or the labor for certain work in which the wages rate is '---17-.}, cents an hour, and the operative, as shown by the time card conmienceswork at 8.15; works until 10.05 and then ceases work on this job until 11.25; Works until a; is

The operator turns the The riveted ers 21 then (Toni i fier the poi, which the the set so phini shifted wi =1 t,

hot the pointers time.

if there is any fixed interval in 5:

ing a series of time cards, such as minutes for luncheon that must ale. omitted, the pointer 35 is made us stead of the pointer 32, and this pointer adjusted on the time scale a, thirty 'nu interval ahead or in advance of the point 32. Adjustments "are then made with t pointer-on the time scale althmigh i ings are taken from the other pointe If the work is continuous and El. ployees commence at eon: time on the time scale thee pointers 2i and 2s need because the time seal putatioiis are calculated the ointers St $215, or omitted, pt the quitting time, and from the pointer Til"? the workman did no regular time, then it will shift the pointers 3-1, to the the Wages eoinmenee, and then tape 20 and, is pointers 21, 2, to

rying a set of pointers, and means for securing together said sliding devices for intervals to be included in the computation.

2. In a calculating machine, the combination with a casing and a fixed scale, of a holder carrying a series of computations at varying rates for each interval of the fixed scale, an endless tape, with an indicator attached thereto, a second indicating device, With means for securing and releasing the same from said endless tape, both indicators indicating computations correspoi'iding to the division intervals on the. fixed scale whereby for intervals to be omitted from the computations the second indicator may be moved over the scale independently of the first indicator.

3. In a calculating machine, the combina tion with a casing and a fixed scale, of a holder carrying a series of com nitations at varying rates for each interval of the fixed scale, an endless tape, With. pointers secured to said tape to indicate the desired computation With reference to any selected interval on the fixed scale, a block loosely mounted on said tape carrying a second set of pointers, and means for clamping the block to the tape for intervals to be included in the con'iputations.

4. In a calculating machine, the combination with a casing and afixed scale mounted on top of the casing, of a pair of rollers mounted in the casing and carrying a sheet imprinted with a series of computations at varying rates for each interval of the fixed scale, a tablet over which said sheet is displayed, and means for actuating the rollers to bring any desired set of computations over said tablet, a sliding device With an indicator attached thereto, a second inclicating device, with means for securing and releasing the same from said sliding dev ce, both indicators indicating computations corresponding to the division intervals on the fixed scale whereby for intervals to be omitted from the computations the second indi- :ator may be moved over the scale independently of the first indicator.

In a calculating machine, the combination with a casing and a fixed scale mounted on top ot the casing, of a pair ot' rollers mounted on the casing and carrying a sheet imprinted with a series of computations at varying rates for each interval of the fixed scale, a tablet over which said sheet is dis played, and means for actuating the rollers to bring any desired set of computations over said tablet, an endless tape, with point ers secured to said tape to indicate the desired computation with reterenceto any selected. interval on the fixed scale, a block loosely mounted on said tape carrying a second set of pointers, and means for clamping the block to the tape for intervals to be included in the computations.

WILLIAM S. JOHN.

Attest:

ARTHUR H. EWALD, K. SMITH. 

